I find that it is hard to follow a conversation when the username is at the bottom of the comment, especially with longish comments. Not only that, but a comment loses context when you don’t have an idea who is making the comment before you read it - having to scroll down to first read the username and then back up to read the comment is not great UX imo.

It would be great to have an option to move usernames for comments to the top of the comment.